Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / leds / leds.h

diff --git a/kernel/drivers/leds/leds.h b/kernel/drivers/leds/leds.h
new file mode 100644 (file)
index 0000000..79efe57
--- /dev/null
+++ b/kernel/drivers/leds/leds.h
@@ -0,0 +1,76 @@
+/*
+ * LED Core
+ *
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#ifndef __LEDS_H_INCLUDED
+#define __LEDS_H_INCLUDED
+
+#include <linux/device.h>
+#include <linux/rwsem.h>
+#include <linux/leds.h>
+
+static inline void led_set_brightness_async(struct led_classdev *led_cdev,
+                                       enum led_brightness value)
+{
+       value = min(value, led_cdev->max_brightness);
+       led_cdev->brightness = value;
+
+       if (!(led_cdev->flags & LED_SUSPENDED))
+               led_cdev->brightness_set(led_cdev, value);
+}
+
+static inline int led_set_brightness_sync(struct led_classdev *led_cdev,
+                                       enum led_brightness value)
+{
+       int ret = 0;
+
+       led_cdev->brightness = min(value, led_cdev->max_brightness);
+
+       if (!(led_cdev->flags & LED_SUSPENDED))
+               ret = led_cdev->brightness_set_sync(led_cdev,
+                                               led_cdev->brightness);
+       return ret;
+}
+
+static inline int led_get_brightness(struct led_classdev *led_cdev)
+{
+       return led_cdev->brightness;
+}
+
+void led_stop_software_blink(struct led_classdev *led_cdev);
+
+extern struct rw_semaphore leds_list_lock;
+extern struct list_head leds_list;
+
+#ifdef CONFIG_LEDS_TRIGGERS
+void led_trigger_set_default(struct led_classdev *led_cdev);
+void led_trigger_set(struct led_classdev *led_cdev,
+                       struct led_trigger *trigger);
+void led_trigger_remove(struct led_classdev *led_cdev);
+
+static inline void *led_get_trigger_data(struct led_classdev *led_cdev)
+{
+       return led_cdev->trigger_data;
+}
+
+#else
+#define led_trigger_set_default(x) do {} while (0)
+#define led_trigger_set(x, y) do {} while (0)
+#define led_trigger_remove(x) do {} while (0)
+#define led_get_trigger_data(x) (NULL)
+#endif
+
+ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
+                       const char *buf, size_t count);
+ssize_t led_trigger_show(struct device *dev, struct device_attribute *attr,
+                       char *buf);
+
+#endif /* __LEDS_H_INCLUDED */